Project Euler #189: Tri-colouring a triangular grid

Hacker
Rank
Score
181
flag of India
50.00
184
flag of India
50.00
185
flag of Republic of Korea
50.00
186
flag of India
50.00
189
flag of Republic of Korea
50.00
190
flag of United States
50.00
191
flag of India
50.00
196
flag of Italy
50.00
197
flag of Taiwan
50.00
198
flag of India
50.00
199
flag of United States
50.00
200
flag of India
50.00
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